Aromatization of n-heptane over H-AlMFI, Ga/H-AlMFI, H-GaMFI and H-GaAlMFI zeolite catalysts:: influence of zeolitic acidity and non-framework gallium

被引：31

作者：

Choudhary, VR ^{[1
]}

Mulla, SAR ^{[1
]}

Banerjee, S ^{[1
]}

机构：

[1] Natl Chem Lab, Div Chem Engn, Pune 411008, Maharashtra, India

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2003年 / 57卷 / 03期

关键词：

aromatization for n-heptane; H-AlMFI; Ga/H-AlMFI; H-GaMFI; H-GaAlMFI;

D O I：

10.1016/S1387-1811(02)00606-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Influence of zeolite acidity (strong acid sites measured in terms of the pyridine chemisorbed at 400 degreesC) and nonframework Ga-species present in the zeolite channels on the conversion (total and to aromatics) and selectivity in the aromatization of n-heptane at 500 degreesC over the H-AlMFI (H-ZSM-5). Ga/ H-AlMFI, H-GaMFI and H-GaAlMFI zeolite catalysts (GHSV = 3400 and 13,600 h(-1)) has been investigated. Among the zeolite catalysts, the H-GaAlMFI (with high acidity and high non-FW Ga) showed the highest n-heptane conversion and aromatization activity. Both the zeolitic acidity and non-FW Ga-species were found to play important role in the aromatization process. producing a combined effect. (C) 2002 Elsevier Science Inc. All rights reserved.

引用

页码：317 / 322

页数：6

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